| [isolation-frequency and antibiotic susceptibility of streptococcus pneumoniae, haemophilus influenzae, and pseudomonas aeruginosa isolated in regional core hospitals in the nagaoka district of niigata prefecture (changes for 3 years)]. | we measured mics of various antimicrobial agents against streptococcus pneumoniae, haemophilus influenzae, and pseudomonas aeruginosa isolated in the nagaoka district of niigata prefecture in 2000 (march-may), 2001 (january-may), and 2002 (march-may). s. pneumoniae: fifty-six strains were isolated in 2000, 119 strains in 2001, and 88 strains in 2002. in 2000, 2001, and 2002, 24 strains (42.9%), 58 strains (48.7%), and 40 strains (45.5%), respectively, were penicillin-intermediate s. pneumoniae ( ... | 2004 | 15116575 |